Home / 13,686.43-20,523.27-7,110.85

Finding the Fourth Proportional to 13,686.43, 20,523.27 and 7,110.85

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Solution

The fourth proportional to 13,686.43, 20,523.27 and 7,110.85 is: 10,662.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686.43 : 20,523.27 = 7,110.85 : x
  2. Step 2: Convert to fraction form
    13,686.43/20,523.27 = 7,110.85/x
  3. Step 3: Cross multiply
    13,686.43x = 20,523.27 × 7,110.85
  4. Step 4: Simplify right side
    13,686.43x = 145,937,910.23
  5. Step 5: Solve for x
    x = 145,937,910.23/13,686.43
  6. Step 6: Final answer
    x = 10,662.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.